Lower Unit 'Flush'

[Troy_from _Oz]

Hi, I was just wondering if there is any need to flush the lower unit (somehow) rather than simply draining the fluid when changing the L/U oil. I was once told by an auto mechanic that you can run a small amount of kerosene in with your engine oil and that this has the same effect as the 'proper' engine oil flush products you can buy. Apparently this lowers the viscosity of the oil to allow for particulate matter and carbon build up to be removed at the drain stage? Is it worth doing something like this for the L/U oil?

 

[ob]

Re: Lower Unit 'Flush'

I wouldn't recommend flushing with anything but lower unit oil by injecting some in top vent hole .

 

[Mumblerone]

Re: Lower Unit 'Flush'

Make sure if you flush using the top hole...you fill using the bottom hole. I agree with OB, no need to do anything else. Changing oil is kind of like flushig anyways, isn't it?

 

[rickdb1boat]

Re: Lower Unit 'Flush'

Change it, run it, change it again. It's flushed!

 

[miloman]

Re: Lower Unit 'Flush'

generally lower unit oil should be changed every 50 to 100 hrs certainly everyseason. As the others say there is no need to flush it. although I find that I like to change the oil when the weather is warmer as to the viscosity of the oil. Most drain plugs are magnatized so that any particles can accumulate on it

 

[Troy_from _Oz]

Re: Lower Unit 'Flush'

thanks guys. Ill just change the fluid out and all will be well <br /><br />cheers<br /><br />Troy